SHAFT DRIVE 4-7
• Adjust the dial gauge so that it touches the secondary drive
bevel gear cam dog; hold the driven bevel gear securely, and
turn the drive bevel gear in each direction, reading the total
backlash on the dial gauge.
% Secondary bevel gear backlash
Standard: 0.05 – 0.32 mm (0.002 – 0.013 in)
NOTE:
When measuring backlash, hold the left crankcase horizontally
pull the secondary drive gear to take the bearing play out.
• If the backlash is not within specification, the shims (Driven
bevel gear side) must be changed and the backlash should be
re-checked until correct.
Refer to the chart for appropriate changes.
NOTE:
When changing the shims (Driven bevel gear side), measure the
thickness of old shims. Using the thickness of the old shims as a
guide, adjust the backlash by referring to the chart.
Backlash Shim adjustment
Under 0.05 mm
Increase shim thickness
(0.002 in)
0.05 – 0.32 mm
(0.002 – 0.013 in)
Co rect
Over 0.32 mm
Decrease shim thickness
(0.013 in)
SHIM SPECIFICATIONS
Drive bevel gear side
Part No. Shim thickness
24935-38A01-030 0.30 mm (0.012 in)
24935-38A01-035 0.35 mm (0.014 in)
24935-38A01-040 0.40 mm (0.016 in)
24935-38A01-050 0.50 mm (0.020 in)
24935-38A01-060 0.60 mm (0.024 in)
NOTE:
The shims (drive bevel gear side) are available as a set (24935-
38810).
Driven bevel gear side
Part No. Shim thickness
24945-05A00-0A0 0.30 mm (0.012 in)
24945-05A00-0B0 0.35 mm (0.014 in)
24945-05A00-0C0 0.40 mm (0.016 in)
24945-05A00-0D0 0.50 mm (0.020 in)
24945-05A00-0E0 0.60 mm (0.024 in)
NOTE:
The shims (driven bevel gear side) are available as a set (24945-
05810).
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